Six players are to be told they have no future at Celtic by manager Neil Lennon.
The boss, speaking on Tuesday ahead of the league champions’ midweek fixture with St Johnstone, says he is looking to bring in “three or four quality players” in the summer transfer window.
A number of players, including Darren O’Dea, Daniel Majstorovic, Niall McGinn, Mark Wilson, Cha Du-Ri and Glenn Loovens, are out of contract at the end of the season and could be moved on.
Fringe players such as Paddy McCourt, Efrain Juarez, Morten Rasmussen and Daryl Murphy are also in danger, although all four have time to run on their deals.
Fraser Forster and Pawel Brozek, currently on loan with the club, are due to return to Newcastle United and Trabzonspor respectively in the summer.
"Some of them have been told, not all of them," said Lennon.
"The squad is bigger than we want it to be and hopefully we will be trimming it.
"We want to add three or four quality players and we don't want to clog up the young ones coming through, we want to give them the opportunity."